#!/usr/bin/make -f

EMPTY :=
SPACE := $(EMPTY) $(EMPTY)
DOLLAR := $

include /usr/share/dpkg/architecture.mk

export DEB_BUILD_MAINT_OPTIONS = hardening=+all

archs_that_need_atomic = none
ifeq ($(DEB_HOST_ARCH),$(findstring $(DEB_HOST_ARCH), $(archs_that_need_atomic)))
export DEB_LDFLAGS_MAINT_APPEND = -Wl,--no-as-needed -latomic -Wl,--as-needed
TESTS_EXTRA_LIBS += -latomic
endif

# leftover test cases of removed qt6-* checks; these tests need to be excluded
# when running run_tests.py in the run-tests autopkgtest
TESTS_EXCLUDED += qt6-deprecated-api-fixes qt6-fwd-fixes qt6-header-fixes qt6-qhash-signature qt6-qlatin1stringchar-to-u

# keep the "++" at the end, to make sure the tool used is the C++ frontend
CLANGPP=$(shell realpath $$(env PATH=$$(echo "$$PATH" | sed -r -e 's|/usr/lib/ccache/?:||') which clang++))++
CLANG_APPLY_REPLACEMENTS=$(shell realpath $$(which clang-apply-replacements))
CLANG_TIDY=$(shell realpath $$(which clang-tidy))

DPKG_ARCHITECTURE = $(shell dpkg --print-architecture)

%:
	dh $@

execute_after_dh_auto_clean:
	# cleanup the artifacts of the tests
	find tests/ \( -name '*.o' -o -name '*.out' -o -name '*.result' -o -name '*.gch' -o -name '*.pch' -o -name '*.fixed' -o -name '*.yaml' \) -delete

override_dh_auto_configure:
	dh_auto_configure -- -DCLANGPP_EXECUTABLE="$(CLANGPP)" -DREADLINK_CMD:FILEPATH=/bin/readlink

override_dh_auto_install:
	dh_auto_install --destdir=debian/clazy
	# drop RPATH pointing to the private libdir of LLVM libraries,
	# i.e. /usr/lib/llvm-$VERSION/lib
	chrpath -d $(CURDIR)/debian/clazy/usr/bin/clazy-standalone $(CURDIR)/debian/clazy/usr/lib/*/*.so
	# drop extra license file
	rm $(CURDIR)/debian/clazy/usr/share/doc/clazy/LGPL-2.0-or-later.txt
	# create a local shell environment file with the various paths & configurations
	:> $(CURDIR)/debian/debian.sh
	echo 'export CLANG="$(CLANGPP)"' >> $(CURDIR)/debian/debian.sh
	echo 'export CLANG_APPLY_REPLACEMENTS="$(CLANG_APPLY_REPLACEMENTS)"' >> $(CURDIR)/debian/debian.sh
	echo 'export CLANG_TIDY="$(CLANG_TIDY)"' >> $(CURDIR)/debian/debian.sh
	echo 'export TESTS_EXCLUDED="$(TESTS_EXCLUDED)"' >> $(CURDIR)/debian/debian.sh
	echo 'export TESTS_EXTRA_LIBS="$(TESTS_EXTRA_LIBS)"' >> $(CURDIR)/debian/debian.sh
	mkdir -p $(CURDIR)/debian/clazy-tests/usr/share/clazy
	mv $(CURDIR)/debian/debian.sh $(CURDIR)/debian/clazy-tests/usr/share/clazy/debian-$(DPKG_ARCHITECTURE).sh

override_dh_auto_test:
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
	chmod +x $(CURDIR)/obj-$(DEB_HOST_GNU_TYPE)/clazy
	env PATH=$(CURDIR)/obj-$(DEB_HOST_GNU_TYPE):$(PATH) DEBIAN_EXTRA_LIBS="$(TESTS_EXTRA_LIBS)" CCACHE_DISABLE=1 dh_auto_test -- $(and $(TESTS_EXCLUDED),ARGS+=-E) $(and $(TESTS_EXCLUDED),ARGS+="'^($(subst $(SPACE),|,$(TESTS_EXCLUDED)))\$(DOLLAR)$(DOLLAR)'")
endif

override_dh_compress:
	# do not compress documentation markdown & JSON files
	dh_compress -X.md -X.json

override_dh_gencontrol:
	dh_gencontrol -- \
	  -V'clazy:clang=$(shell dpkg -S "$(CLANGPP)" | cut -d: -f1)' \
	  -V'clazy:clang-tidy=$(shell dpkg -S "$(CLANG_TIDY)" | cut -d: -f1)' \
	  -V'clazy:clang-tools=$(shell dpkg -S "$(CLANG_APPLY_REPLACEMENTS)" | cut -d: -f1)'